limelite renovating plaster
below copied from the limelite pdf doc...
Introduction
Pre-blended and dry-bagged, Limelite Renovating Plaster is a lightweight, cementitious plaster which has been developed to control dampness passing through plastered walls of old properties. It can also be applied shortly after insertion of a new damp-proof course or system
It is designed to have similar properties to a 1:1:6 cement:lime:sand plastering mortar, but with Perlite lightweight aggregate replacing the sand. Man-made fibres are incorporated into the mix to control shrinkage and improve flexural strength.
Effect of Moisture
Not impervious to water vapour, but will resist the passage of soluble salts.
Biological
The special constituents including lime in Limelite Renovating Plaster ensure an alkalinity which inhibits mould growth
hope that is of help....